Attachment for paper-making machines



C. E.-CRAMER. ATTACHMENT FOR PAPER MAKING MACHINES.

APPLICATION FILED IAN. 22, 1 9 I 9.

Patented. July 18, 1922.

2 SHEETS-SHEET I glvwa mfoz 67E wwm f With W06 e0 0V5. CRAMER. ATTACHMENT FOR PAPER MAKING MACHINES.

APPLICATION FILED JAN. 22, 1919;

Patented July 18, 1.922.

F I 3140mm;

pawn a so 12 o UNITED fiTATES PA ENT OFFICE.

CHRISTOPHER E. CRAMER, 0F HACKENSAQK, NEW JERSEY.

ATTACHMENT FOR PAPER-MAKING MACHINES.

To all whom it may concern:

Be it known that I, CHRISTOPHER E. CRAMER, a citizen of'the United States, re- .iding at Hackensack, in the county of Bergen and State of New Jersey, have invented new and useful Improvements in Attachments for Paper-Making Machines, of which the following is a specification.

v This invention relates to paper making machinery and aims to provide an improved suction slice for moving by vacuum the water which is squeezed from the pulp or other stock carried by an endless belt.

An object of the present invention is to provide a suction slice having a restricted mouth or opening, before which, is positioned an apron or scraper, which prevents the water from passing under the slice, effectually removing said water and directing it into the mouth or opening.

Another object is to provide a slice, which embodies a tapered entrance chamber and a relatively large suction chamber, thereby increasing the suction and insuring the passage of water through the mouth of the slice.

Other objects and advantages of the invention will appear as the following description is read in connection with the accompanying drawings In the drawings Figure 1 is a side elevation of a fragmentary portion of a paper making machine being equipped with the improved vacuum slice.

Figure 2 is a top plan view of the same.

Figure 3 is a detail horizontal sectional view taken on the line 33 of Figure 1.

Figure 4. is an enlarged sectional view through the slice and the adjacent rolls.

Figure 5 is a detail perspective view of the slice removed from the machine and Figure 6 is a sectional view on the line 66 of Figure 5.

Referring in detail to the drawings, like characters of reference denote corresponding parts throughout the several views.

In the form of the invention illustrated, the improved slice is shown as applied to a fragmentary portion of a paper making machine, the frame of which is indicated at 10. The belt, which is usually constructed of felt is illustrated at 11 and the upper and lower rolls, through which the belt passes are indicated at 12 and 13 respectively. The

Specification of Letters Patent.

Patented July 1.8, 1922.

Application filed January 22, 1919. Serial No. 272,495.

' foregoing is of the usual any preferred construction and arrangement and forms no part of the present invention. Being shown merely for the purpose of illustrating the construction and use of the invention.

The improved suction slice which constitutes the present invention embodies a substantially cylindrical portion 14, which is substantially the same length as the width of the belt 11 and is positioned transversely across the belt. Extending laterally from the cylindrical portion 14 is a restricted portion 15, which forms an entrance chamber opening into the cylindrical portion 14, which portion provides a vacuum chamber.

The lower wall 16 of the chamber 15 is parallel to and bears upon a belt 11, while the upper wall 17 in inclined with respect thereto, the respective end of the chamber 15 forming a mouth or entrance opening 18. The lower wall 16 extends beyond the mouth or entrance opening 18 to provide a rigid scraper apron 19, which bears upon the surface of the belt 11 and collects the water and directs it into the mouth 18.

Projecting from one end of the cylindrical portion or vacuum chamber 14, is a pipe 20, onto which is connected by means of a union 21, a hose 22, the latter being connected to a suitable suction device (not shown). Projecting from the opposite end of the cylindrical portion or suction chamber 14, is a short shaft 23, and this shaft and the pipe 20 are mounted in suitable bearing brackets 24 secured to a convenient 90 point upon the machine, for example upon the frame 10.

' By the use of the improved suction pipe,

the water is collected by a scraping apron 19 and directed through the mouth or open- 95 ing 18 into the vacuum chamber 15, the apron 19, which is formed of thin metal effectually prevents the water from passing beneath'the slice, so that the sheet is free from what is commonly known as railroad- 100 in For the use of the apron water is pre vented from going through the felt so that the paper will not be marred or otherwise injured and the life of the felt is lengthened 105 by the manner in which the water is removed. As the water is pressed from the felt the apron takes it up and the pipe or suction slice prevents it from returning to the felt, so that it is not necessary to clean 110 the latter by hard whipping or by any other method.

The invention is susceptible of various changes in its form,v proportions and minor details of construction and the right is herein reserved to make such changes as properly fall within the scope of the ap pended claim.

I claim A suction slice comprising a substantially cylindrical body portion having a relatively narrow opening extending throughout its length, a tapered entrance chamber formed of side walls and top and bottom walls, the said entrance chamber being disposed tangently with respect to the cylindrical body member and communicating with the latter at its larger end and aforwardly projecting scraper apron formed by an extension of the lower wall of the entrance chamber and ex- 20 tending throu h the restricted mouth of said entrance c amber.

In testimon whereof I aflix in si nature.

GHR STOPHER E. C A ER. 

